Winterizing your RV is crucial to prevent costly damage from freezing water lines. One of the most effective methods is blowing out your RV's water lines using compressed air. This guide will walk you through the process, addressing common questions and concerns. Properly blowing out your RV water lines safeguards your investment and ensures a smooth start to your next camping season.
Why Blow Out RV Water Lines?
Freezing water expands, putting immense pressure on your RV's plumbing system. This pressure can cause pipes to burst, leading to significant repairs and potential water damage inside your RV. Blowing out the lines removes all water, eliminating the risk of freezing and damage. This proactive measure is far cheaper than the cost of repairing burst pipes.
What You'll Need to Blow Out Your RV Water Lines
Before you begin, gather the necessary supplies:
- Air compressor: A portable compressor capable of delivering at least 100 PSI is recommended. Higher PSI might be necessary depending on your RV's plumbing length and configuration.
- Air hose: A long, flexible air hose with a suitable fitting to connect to your compressor.
- Blow gun: A blow gun with a variety of nozzle attachments will allow you to reach various points in your RV's plumbing system.
- Water pressure regulator (optional): This device can help control the air pressure, preventing damage to your plumbing system. It's particularly useful if you have older or more delicate plumbing.
- Safety Glasses: Protecting your eyes from potential debris is essential.
- Gloves: These protect your hands from the cold air and potential moisture.
- Towels: Have towels on hand to clean up any spills or condensation.
How to Blow Out Your RV Water Lines: A Step-by-Step Guide
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Turn off all water sources: Ensure that the water pump is off and the city water hookup is disconnected.
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Open all faucets and low-point drains: This allows air to flow freely throughout the system, ensuring complete water removal.
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Connect the air compressor and hose: Attach the air hose to the air compressor and ensure a secure connection.
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Connect the blow gun to the hose: Securely connect the chosen blow gun nozzle to the end of your air hose.
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Start the air compressor: Turn on the compressor and carefully monitor the pressure gauge.
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Begin blowing out the lines: Systematically work your way through each faucet, low-point drain, and other water fixtures. Begin with the furthest points from the air source to ensure a thorough purge.
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Check for complete water removal: Continue blowing until only air comes out of all faucets and drains. A small amount of residual moisture is acceptable, but standing water should be completely eliminated.
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Disconnect the air compressor and hose: Turn off and disconnect your air compressor and blow gun.
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Add RV antifreeze (optional): While blowing out your lines is effective, adding RV antifreeze to low points provides an extra layer of protection against freezing.
How Much Air Pressure Should I Use?
The ideal air pressure varies based on your RV's plumbing system, but starting with lower pressure (around 30-40 PSI) and gradually increasing is recommended. Monitor the lines for any signs of leaks or stress during the process. Never exceed the recommended PSI for your air compressor.
What if I Have a Low-Point Drain?
Low-point drains are crucial for completely removing water from your system. Make sure to open these drains and thoroughly blow out any remaining water.
Can I Use Compressed Air to Winterize My Water Heater?
While you can use compressed air to blow out water from your water heater, it's crucial to fully drain it first, and use extreme caution to avoid damaging the heating element. If you're unsure, consulting a professional is recommended.
What if I Don't Have an Air Compressor?
If you don't own an air compressor, you can use a water pump and a special winterizing kit, but using compressed air is widely considered the most effective method.
What are the signs of a problem with my RV's water lines?
Signs of a problem include low water pressure, leaks, unusual noises coming from the pipes, or water discoloration. Addressing these promptly can prevent more severe issues.
By following these steps and taking the necessary precautions, you can effectively blow out your RV water lines, preventing costly damage and ensuring your RV is ready for the next season. Remember to consult your RV's owner's manual for specific instructions and recommendations.
